above-board vs mighty

above-board

adv
  • Honestly; openly. 

adj
  • In open sight; without trick, concealment, or deception. 

mighty

adv
  • Very; to a high degree. 

adj
  • Excellent, extremely good. 

  • Very strong; possessing might. 

  • Very heavy and powerful. 

  • Accomplished by might; hence, extraordinary; wonderful. 

  • Very large; hefty. 

How often have the words above-board and mighty occurred in a corpus of books? (source: Google Ngram Viewer )